Aish Hatorah
http://www.aish.com/passcook/
Menu ideas; gourmet recipes

Beit Chatulim
http://www.geocities.com/Heartland/Hills/1259/pschrcpt.htm
Pesach vegetarian recipes

Chabad   
http://www.chabad.org/holidays/passover/pesach.asp?AID=32593

Elimelech David Ha-Levi Web, Inc.
http://www.angelfire.com/pa2/passover/recipes-pesach/
Categories of ethnic recipes, special diet recipes for Pesach.

Jewish Food
http://www.jewish-food.org/catindex.htm
Scroll down to Passover for hordes of recipes by category

"Holidays on the Net" Jewish Post of New York
http://www.holidays.net/passover/recipes.htm  

Holiday Recipes

http://holidayrecipe.com/features/passover.asp

Kosher Cooking
http://www.koshercooking.com/recipes/passover/index.html

Kosher Delight
http://kosherdelight.com/PassoverRecipes.shtml
Large collection of recipes

Virtual Jerusalem
http://www.virtualjerusalem.com/jewish_holidays/pesach/recipes.htm